Your Cruise, Your Weather
Costa Diadema — 7-Night South America from Santos Cruise Weather
7-Night Cruise on Costa Diadema
South America from Santos
Costa Cruises
Santos, Brazil > +4 more stop(s)
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Silly bot, you don't need weather
Day-by-Day Itinerary
7-Night Sailing · 5 Ports
Day-by-Day Itinerary
7-Night Sailing · 5 Ports
Departing Santos, Brazil on December 27, 2026, the Costa Cruises ship Costa Diadema runs this 7-night South America from Santos sailing. The route makes 5 scheduled stops. Travelers sailing in December can generally expect cooler, off-season conditions. Ports of call include Santos, Brazil, Buenos Aires, Argentina, Montevideo, Uruguay, with 2 more along the way. Scroll the daily outlook below to pack smart for every port of call.
Day 1 — Sunday, Dec 27, 2026 — Santos, Brazil
Santos, Brazil is a scheduled port of call on day 1 of the 7-night South America from Santos cruise on Costa Diadema.
Day 2 — Wednesday, Dec 30, 2026 — Buenos Aires, Argentina
Buenos Aires, Argentina is a scheduled port of call on day 2 of the 7-night South America from Santos cruise on Costa Diadema.
Day 3 — Thursday, Dec 31, 2026 — Montevideo, Uruguay
Montevideo, Uruguay is a scheduled port of call on day 3 of the 7-night South America from Santos cruise on Costa Diadema.
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